Water-filled multi-layer box structure of the shielded workshop of the third generation nuclear power plant

Abstract

The invention provides a water-filling multilayer box body structure of a third-generation nuclear power station shielded plant. Multiple layers of annular box body structures are arranged on the outer surface of a nuclear island plant foundation, cavities formed in all layers of box body structures are filled with high-pressure water and are also connected with a water tank water guiding pipe, profile steel structures are also arranged at the upper end and the lower end of each layer of box body structures, the profile steel structures between two layers of box bodies are filled with micro-expansive high-strength concrete, and external prestressing steel strands are arranged on the outer surface of the multiple layers of annular box body structures. The water-filling multilayer box body structure meets the special requirements and demands of a large third-generation nuclear power station structure, modular construction of the nuclear power station shielded plant is achieved, and the external event withstanding and internal waste heat exporting safety of a nuclear power station is remarkably improved. Of course, the water-filling multilayer box body structure is also applied to large storage tanks and anti-impact structures and structures needing a large amount of water sources for fire extinguishment.

Description

technical field [0001] The invention relates to a water-filled multi-layer box structure of a shielding factory building of a third-generation nuclear power plant. Background technique [0002] With the vigorous development of nuclear power in our country, the safety and economy of nuclear power plants have become more and more important. The huge initial construction cost of nuclear power plants is a key factor restricting the further development of nuclear power. The initial construction cost of nuclear power plants mainly comes from two aspects, one is the safety reserve for improving safety, and the other is the long construction period. Therefore, low-cost safety facility reserves and modular construction technology can significantly reduce the design and construction costs of nuclear power plants and improve the competitiveness of nuclear power. The water-filled multi-box shielding plant structure of the present invention not only improves the safety reserve of the n...

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Problems solved by technology

The huge initial construction cost of nuclear power plants is a key factor restricting the further development of nuclear power

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